Preparation of hypochlorites



1%{Pmmd Aug. 29, 1944 f a the;

7, Pa., a corporation Wadsworth, Ohio, or to edy GM ni Commy, Alle liany of P'ennaylnnia Serial No. 224,109

No Drawing. Application Aumt 10, ms,

1 Claim. (CI. 23-86) This invention relates to the production of lithium hypoc Prior to this in mixture of hlorite containing amounts of lithium chloride.

lithium chloride does not. contain active chlorine, it is readily apparent that formation of lithium chloride is very undesirable and preferably should be minimized in order to obtain not of high available chlorine content in good yield without undue e Since lithium sodium or potassium hydroxi Th compounds may be chlorinated or in solution an inert Similarly, lithium chloride and sodium hydroxform lithium hyposolution or sodium or potassium hlorite may be formed and lithium chloride or other lithium compounds, such as lithium nitrate added thereto, the lithium hypochlorite forming by double decomposition.

The lithium hypochlorlte produced in this relatively expensive and since substantial appears to have a lithium rpochlo- Ezample I 68.4 parts by weight of chlorine was absorbed in a cold mixture containing 40 parts of sodium hydroxide, 23.9 parts by weight of lithium hydroxide and 220 parts oi. water. The solution was evaporated under ,crystals of sodium chloride developed. These filtration and the solucrystals were removed by tion was further evapora d to develop further quantities of crystals. Aite a 2 a,sso,sao

' sample In v details shall be regarded as limitations upon the scope of the invention except insofar as included in the accompanying claim.

Iclaim:

The process which comprises chlorinating an 5 aqueous solution comprising lithium hydroxide and an hydroxide of the metal of the group consisting 01 sodium and potassium whereby an hypochlorite and a chloride are formed, precipitatinz a chloride of said group while retainin: the hypochlorite in solution and removing the chloride precipitate from the solution.

' GEORGE E. CADY. 

